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body systems vocab
| Term | Definition |
|---|---|
| digestive system | Breaks down food into nutrients for energy and repair. |
| excretory system | Removes waste and excess water from the body. |
| circulatory system | Transports oxygen, blood, and nutrients throughout the body. |
| respetory system | Brings in oxygen and removes carbon dioxide. |
| endocrine sytem | Regulates body processes using hormones. |
| musculoskeletal system | Provides structure, support, and allows for movement. |
| nervous system | The control center that sends electrical signals to coordinate actions. |
| homeostasis | It is the process where the body works to keep everything balanced |
| chemical digestion | Enzymes and chemicals break down food into tiny molecules so your body can absorb them. |
| physical digestion | The physical breaking apart of food into smaller pieces |
| hormone | A chemical messenger created by the body. |
| stimulus | A signal from the environment that triggers a reaction. |
| reflex | An automatic response to a stimulus that happens without you even thinking about it. |
| neuron | A nerve cell that sends and receives electrical signals throughout the body. |
| heart | The muscle that constantly pushes blood through your veins and arteries to deliver oxygen to your cells. |
| alveoli | Small air sacs in the lungs that are responsible for gas exchange. |
| organ | A group of different tissues working together to do a specific job. |
| tissue | A group of similar cells that work together to do a specific task. |
| adrenaline | A hormone released when you are scared, excited, or in danger. |
| bone | Body part responsible for protecting your organs and giving your body shape. |